Kohler flagship whirlpools offer special, innovative enhancements to provide a variety of water experiences, from soothing relaxation to invigorating massage. RiverBath Quadrangle summons the essence of the rolling river to your bath. Whirlpool,rapids and whitewater river experiences are available at the touch of a button. Two variable-speed pumps with 18 settings power eight Flexjet whirlpool jets and four Riverjets that provide an individually adjustable hydro-massage for those aching muscles, and an in-line, four-kilowatt heater keeps the water at your desired temperature. Chromatherapy lighting provides a full spectrum of color that washes over you for a complete sensory experience.